CodeMirror.defineMode("coffeescript", function (conf) {
    var ERRORCLASS = "error";
    function wordRegexp(words) {
        return new RegExp("^((" + words.join(")|(") + "))\\b")
    }
    var singleOperators = new RegExp("^[\\+\\-\\*/%&|\\^~<>!?]");
    var singleDelimiters = new RegExp("^[\\(\\)\\[\\]\\{\\}@,:`=;\\.]");
    var doubleOperators = new RegExp("^((->)|(=>)|(\\+\\+)|(\\+\\=)|(\\-\\-)|(\\-\\=)|(\\*\\*)|(\\*\\=)|(\\/\\/)|(\\/\\=)|(==)|(!=)|(<=)|(>=)|(<>)|(<<)|(>>)|(//))");
    var doubleDelimiters = new RegExp("^((\\.\\.)|(\\+=)|(\\-=)|(\\*=)|(%=)|(/=)|(&=)|(\\|=)|(\\^=))");
    var tripleDelimiters = new RegExp("^((\\.\\.\\.)|(//=)|(>>=)|(<<=)|(\\*\\*=))");
    var identifiers = new RegExp("^[_A-Za-z$][_A-Za-z$0-9]*");
    var wordOperators = wordRegexp(["and", "or", "not", "is", "isnt", "in", "instanceof", "typeof"]);
    var indentKeywords = ["for", "while", "loop", "if", "unless", "else", "switch", "try", "catch", "finally", "class"];
    var commonKeywords = ["break", "by", "continue", "debugger", "delete", "do", "in", "of", "new", "return", "then", "this", "throw", "when", "until"];
    var keywords = wordRegexp(indentKeywords.concat(commonKeywords));
    indentKeywords = wordRegexp(indentKeywords);
    var stringPrefixes = new RegExp("^('{3}|\"{3}|['\"])");
    var regexPrefixes = new RegExp("^(/{3}|/)");
    var commonConstants = ["Infinity", "NaN", "undefined", "null", "true", "false", "on", "off", "yes", "no"];
    var constants = wordRegexp(commonConstants);
    function tokenBase(stream, state) {
        if (stream.sol()) {
            var scopeOffset = state.scopes[0].offset;
            if (stream.eatSpace()) {
                var lineOffset = stream.indentation();
                if (lineOffset > scopeOffset) {
                    return "indent"
                } else {
                    if (lineOffset < scopeOffset) {
                        return "dedent"
                    }
                }
                return null
            } else {
                if (scopeOffset > 0) {
                    dedent(stream, state)
                }
            }
        }
        if (stream.eatSpace()) {
            return null
        }
        var ch = stream.peek();
        if (stream.match("####")) {
            stream.skipToEnd();
            return "comment"
        }
        if (stream.match("###")) {
            state.tokenize = longComment;
            return state.tokenize(stream, state)
        }
        if (ch === "#") {
            stream.skipToEnd();
            return "comment"
        }
        if (stream.match(/^-?[0-9\.]/, false)) {
            var floatLiteral = false;
            if (stream.match(/^-?\d*\.\d+(e[\+\-]?\d+)?/i)) {
                floatLiteral = true
            }
            if (stream.match(/^-?\d+\.\d*/)) {
                floatLiteral = true
            }
            if (stream.match(/^-?\.\d+/)) {
                floatLiteral = true
            }
            if (floatLiteral) {
                if (stream.peek() == ".") {
                    stream.backUp(1)
                }
                return "number"
            }
            var intLiteral = false;
            if (stream.match(/^-?0x[0-9a-f]+/i)) {
                intLiteral = true
            }
            if (stream.match(/^-?[1-9]\d*(e[\+\-]?\d+)?/)) {
                intLiteral = true
            }
            if (stream.match(/^-?0(?![\dx])/i)) {
                intLiteral = true
            }
            if (intLiteral) {
                return "number"
            }
        }
        if (stream.match(stringPrefixes)) {
            state.tokenize = tokenFactory(stream.current(), "string");
            return state.tokenize(stream, state)
        }
        if (stream.match(regexPrefixes)) {
            if (stream.current() != "/" || stream.match(/^.*\//, false)) {
                state.tokenize = tokenFactory(stream.current(), "string-2");
                return state.tokenize(stream, state)
            } else {
                stream.backUp(1)
            }
        }
        if (stream.match(tripleDelimiters) || stream.match(doubleDelimiters)) {
            return "punctuation"
        }
        if (stream.match(doubleOperators) || stream.match(singleOperators) || stream.match(wordOperators)) {
            return "operator"
        }
        if (stream.match(singleDelimiters)) {
            return "punctuation"
        }
        if (stream.match(constants)) {
            return "atom"
        }
        if (stream.match(keywords)) {
            return "keyword"
        }
        if (stream.match(identifiers)) {
            return "variable"
        }
        stream.next();
        return ERRORCLASS
    }
    function tokenFactory(delimiter, outclass) {
        var singleline = delimiter.length == 1;
        return function tokenString(stream, state) {
            while (!stream.eol()) {
                stream.eatWhile(/[^'"\/\\]/);
                if (stream.eat("\\")) {
                    stream.next();
                    if (singleline && stream.eol()) {
                        return outclass
                    }
                } else {
                    if (stream.match(delimiter)) {
                        state.tokenize = tokenBase;
                        return outclass
                    } else {
                        stream.eat(/['"\/]/)
                    }
                }
            }
            if (singleline) {
                if (conf.mode.singleLineStringErrors) {
                    outclass = ERRORCLASS
                } else {
                    state.tokenize = tokenBase
                }
            }
            return outclass
        }
    }
    function longComment(stream, state) {
        while (!stream.eol()) {
            stream.eatWhile(/[^#]/);
            if (stream.match("###")) {
                state.tokenize = tokenBase;
                break
            }
            stream.eatWhile("#")
        }
        return "comment"
    }
    function indent(stream, state, type) {
        type = type || "coffee";
        var indentUnit = 0;
        if (type === "coffee") {
            for (var i = 0; i < state.scopes.length; i++) {
                if (state.scopes[i].type === "coffee") {
                    indentUnit = state.scopes[i].offset + conf.indentUnit;
                    break
                }
            }
        } else {
            indentUnit = stream.column() + stream.current().length
        }
        state.scopes.unshift({
            offset: indentUnit,
            type: type
        })
    }
    function dedent(stream, state) {
        if (state.scopes.length == 1) {
            return
        }
        if (state.scopes[0].type === "coffee") {
            var _indent = stream.indentation();
            var _indent_index = -1;
            for (var i = 0; i < state.scopes.length; ++i) {
                if (_indent === state.scopes[i].offset) {
                    _indent_index = i;
                    break
                }
            }
            if (_indent_index === -1) {
                return true
            }
            while (state.scopes[0].offset !== _indent) {
                state.scopes.shift()
            }
            return false
        } else {
            state.scopes.shift();
            return false
        }
    }
    function tokenLexer(stream, state) {
        var style = state.tokenize(stream, state);
        var current = stream.current();
        if (current === ".") {
            style = state.tokenize(stream, state);
            current = stream.current();
            if (style === "variable") {
                return "variable"
            } else {
                return ERRORCLASS
            }
        }
        if (current === "@") {
            stream.eat("@");
            return "keyword"
        }
        if (current === "return") {
            state.dedent += 1
        }
        if (((current === "->" || current === "=>") && !state.lambda && state.scopes[0].type == "coffee" && stream.peek() === "") || style === "indent") {
            indent(stream, state)
        }
        var delimiter_index = "[({".indexOf(current);
        if (delimiter_index !== -1) {
            indent(stream, state, "])}".slice(delimiter_index, delimiter_index + 1))
        }
        if (indentKeywords.exec(current)) {
            indent(stream, state)
        }
        if (current == "then") {
            dedent(stream, state)
        }
        if (style === "dedent") {
            if (dedent(stream, state)) {
                return ERRORCLASS
            }
        }
        delimiter_index = "])}".indexOf(current);
        if (delimiter_index !== -1) {
            if (dedent(stream, state)) {
                return ERRORCLASS
            }
        }
        if (state.dedent > 0 && stream.eol() && state.scopes[0].type == "coffee") {
            if (state.scopes.length > 1) {
                state.scopes.shift()
            }
            state.dedent -= 1
        }
        return style
    }
    var external = {
        startState: function (basecolumn) {
            return {
                tokenize: tokenBase,
                scopes: [{
                    offset: basecolumn || 0,
                    type: "coffee"
                }],
                lastToken: null,
                lambda: false,
                dedent: 0
            }
        },
        token: function (stream, state) {
            var style = tokenLexer(stream, state);
            state.lastToken = {
                style: style,
                content: stream.current()
            };
            if (stream.eol() && stream.lambda) {
                state.lambda = false
            }
            return style
        },
        indent: function (state, textAfter) {
            if (state.tokenize != tokenBase) {
                return 0
            }
            return state.scopes[0].offset
        }
    };
    return external
});
CodeMirror.defineMIME("text/x-coffeescript", "coffeescript");